Boulder County Public Health and Weld County both confirmed within two days that there have been the first positive tests of ...

The state’s West Nile virus season appears to be ahead of schedule this year, after two more Colorado counties detected the ...

Mosquitoes in Boulder County have tested positive for West Nile Virus, Boulder County Public Health announced Tuesday. According to a BCPH release, the mosquitoes that tested positive were ...

West Nile virus has been found in Boulder County. Boulder County Public Health confirmed that, last week, mosquitoes trapped on the east side of Niwot tested positive for West Nile.

A Longmont resident has died from meningoencephalitis caused by West Nile virus, the Boulder County Public Health department confirmed Tuesday. The resident is the first in the county to die from ...